Heres a new Sega Game Gear homebrew release:

Before Chris Read made a Game Boy release of oranges., there was one for the Sega Game Gear three months ago.
Bob is stuck in the orange packaging plant where the packing machine has gone out of control and is spitting out oranges all over the place! Why? Some idiot poured radioactive goop all over it and so the oranges turned radioactive! So, locked into the room, Bob needs to dodge the oranges the Orange-O-Matic spits out or else hes toast, which would go good with oranges for a nutritious breakfast. Most items are useful. They help Bob survive. Some can be annoying, though. Heres the items that are in the game so far.

via http://pdroms.de/gamegear/oranges-v2017-11-14-gg-game